Packages that help with CL/.NET integration:

  • Foil - Foil (Foreign Object Interface for Lisp) consists of a protocol and a set of libraries that facilitate access to popular object runtimes, such as the JVM (Java) and the CLI/CLR (dotNET), and their libraries, from Lisp
  • RDNZL - RDNZL (pronounced "Redunzl") enables Common Lisp applications to interact with dot-NET libraries